/*
 *program that accepts the longitude for a place and outputs the time difference from the zero meridian using putchar().
 *author:rahule@cse.iitk.ac.in
*/


#include<stdio.h>

int main()
{	int deg,min,time;
	int hour,minute,total_time,total_minutes;
	char dir,a;
	int flag=0;
	int format_flag;
	deg=0;
	time=0;
	min=0;
	printf("\nenter the coordinates in the format ggdmm' :");
	while((a=getchar())!='E'&&a!='e'&&a!='w'&&a!='W')	//reads charecter till "e" or "w" and save it as "deg"
	{ 
		if(a>47&&a<58)
		{
			deg=deg*10+(a-'0');		//converts ASCII value to digit
		}
		else
		{
			flag=1;		//for wrong inputs,flag is set
			break;
		}
		
	}
	 
	dir=a; 
	while((a=getchar())!='\'')	//reads till " ' "
	{ 
		if(a>47&&a<58)
		{
			min=min*10+(a-'0');	//converts ASCII into number
			
		}
 	 	else
		{
			flag=1;
			break;
		 }
	} 
	if(deg>180&&flag==0)
	{
		printf("\n wrong input \n");
		printf("\n Degree needs to be less than 180");
		flag=1;
	  
        }
       	if(min>60&&flag==0)
	{
		printf("\n wrong input \n");
		printf("\n Minute needs to be less than 60");
		flag=1;
	}
       
	if(flag==0)		//if the input is in right format
	{	 	 
		 total_minutes=deg*60+min;	//converts coordinates into minutes
		 total_time=total_minutes/15;   //calculates total time in minutes
		 hour=total_time/60;		//converts minutes into hours
		 minute=total_time%60;
		 printf("\n Time ");		//prints time as hh:mm
		 if(dir=='w'||dir=='W')
		 	putchar('-');
	   	 putchar((hour/10)+48);
	 	 putchar((hour%10)+48);
	 	putchar(':');
	 	putchar((minute/10)+48);
	 	putchar((minute%10)+48);
	 
	    
	}
	else
		printf("\n Wrong input");
	printf("\n");
}